The Home page is made of 4 different pages. What is the impact of this in SEO, do we have a problem of duplicate content between the Home and the separate pages?
You’ve been reading too many SEO articles written by self-proclaimed “experts”. The sort of duplicate content you are talking about here is no issue at all; never was, never will be. And anyway, Google does not penalise duplicate content, if it finds exact or very near duplicate content on a sngle website then all that will happen is that Google may index only one of the pages.
I actually put a Noindex meta on one page thinking google was going to take the Home as the only useful oneā¦ result : I was on 3rd page, now, just disappeared !!
And in a little while it will reappear. There is a ton of good advice on the Google website, including about SEO, here:
http://support.google.com/webmasters/bin/answer.py?hl=en&answer=35769
And here:
http://static.googleusercontent.com/external_content/untrusted_dlcp/www.google.com/en//webmasters/docs/search-engine-optimization-starter-guide.pdf?cbid=843982610&cbrank=0
In my experience if you follow Google’s best practices advice there will be no need to give yourself a headache trying to understand all these unnecessary and frankly useless “SEO” plugins that there are for WordPress.
Content is king.